Ought it not be a terror to us, to cut off a lap of Christ’s garment, or clip it so short, as to think that it cannot cover us completely, without some rags of our own rotten righteousness sewed into it?
Again, it is this legal principle, that makes believers themselves think it cannot be that they are accepted as righteous, perfectly righteous in the sight of God, through the righteousness of Christ imputed; why, because they want a feeling of that righteousness in themselves, which the legal heart is ready to make the foundation of pardon and acceptance: But as Luther said, we must not feel, but believe, that we are thus righteous; yea, it is his hidden principle of self righteousness, that will make a minister preach Christ alone for righteousness, as if he were as much for exalting Christ, as any that ever preached; and yet, before ever you know well where you are, you will find him bringing in some legal duty of qualification, in order to your being justified.”
Ralph Erskine (1685–1752), Sermon on Matthew 22:42 in A Collection of Sermons on Several Subjects preached by the Rev. Ralph Erskine, minister of the Gospel in Scotland and author of the Gospel Sonnets, 78. (HT: Inwoo Lee)